1372279 has 4 divisors (see below), whose sum is σ = 1374984. Its totient is φ = 1369576.

The previous prime is 1372271. The next prime is 1372303. The reversal of 1372279 is 9722731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9722731 = 2819 ⋅3449.

It is a cyclic number.

It is not a de Polignac number, because 1372279 - 2³ = 1372271 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1372279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337 + ... + 1690.

It is an arithmetic number, because the mean of its divisors is an integer number (343746).

2^1372279 is an apocalyptic number.

1372279 is a deficient number, since it is larger than the sum of its proper divisors (2705).

1372279 is an equidigital number, since it uses as much as digits as its factorization.

1372279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704.

The product of its digits is 5292, while the sum is 31.

The square root of 1372279 is about 1171.4431270873. The cubic root of 1372279 is about 111.1256051833.

The spelling of 1372279 in words is "one million, three hundred seventy-two thousand, two hundred seventy-nine".